Secondary battery



l v (NQ Model.)

. i 2 Sheets-'Sheet O. F. BRUSH.

sooumm BATTERY, Y No. 275,985'. l Patented Appl?! 1883.

l WITNESSESY. f l *,@MVENTOR' /g-z/ v I y I ,fammi A shows a plan view of a secondary batterycon# gated plate.

suitable liquid,and the extreme plates (ribbed =lnents. Figs. 1.1.V and 5 show forms of corral;

lribbed plate. -Fig.S is a vertical section of the wm, and thus form completely-incloscd cellev NITED f STATES- CHARLES-'n.nensn, or CLEVELAND, orne.

v v vSECONDARY BATTERY.

sPncIFIcA'rroN forming' pm of Letters To all whom it may concern:

Be it known that I, ACHARLES F. BRUSH, of.' Cleveland, in -the county of Cuyahoga and State of Ohio, have invented certainnew'andVW useful Improvements in Secondary Batteries; and I do hereby declare the following to be a full, clear, and exact description of the in. vention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had .to the accompanying drawings which form part of this s'peciiication. My inventionrelates to secondary batteries; and it consists in certain improvements in the construction and arrangement ot the parts land elements of a secondary battery, as will hereinafter be described, and pointed out iu the claims. In vthe 4accompanying drawings, Figure 1 structed according to.' myinvention. Fig. 21s avertic'al section of the same. Fig. 3 isatraus-A verse section through the battery, showing the insulating-strip and one ot' the plates or elegated plates. Fig. 6 is a vertical section of a ribbed plate. Fig. 7 isa plan and top view ota .ribbed plate shown in Figs. 7 and i); A Fig. 9 represents dierent 'forms opt ribbed plates. Fig. 10 is a honey-comb, pinatefyFg. 11 is a studded plate, and Fig. 12 is uiribbed corru-v in these gures,aaa are ribbed plates,each provided withaplain or unribbed margin. The plates, arranged as shown, are supported and separated by U-shaped strips or bars d d,'ot insulating materiel, impervious to and unacted on bythe liquid used in the battery, and preferably somewhat elastic, so as better to insure a water-tight joint with the plates. A The end plates are 'protected andl sustained by yplatesl ori-bars c e, of wood or other suitable material, and the whole batteryis bound tirmly. together by bolts f, passiugthrough these end pieces. The spaces between the ribbed plates are filled with dilute snlphnric acid 'or other on the exposed side only) form the'torminals of the batterygas indicated.

extendentirely round the margin'of the plates Application filed J nl-.e il, 188i. lNo model.)

between the plates,j,which cells may or mayl Patent No. 275,985, dated April 1.7, 1883. i

not be 'provided with a gasveut. Such closed or nearlyclosed cells are very convenient when portable apparatus is desired.

and uniformity of the latterinay be insured by occasional partial or com plete inversion of the apparatus. l

' Not' only may plain plates or sheetsyot lead'o or' other suitable material be employediu-this construction of battery, but corrugated, ribbed,

stiidded, cellular, or equivalent plates may also be used, and theplat-es of whatever description may be formed l or developed in any suit- 65 able manner; or they may be provided vor com'- bined with au active coating o f any description, applied byny suitableprocess -or processes. vThese plates areimmersed in a but- .tery-iluidin which the active coating isnsol- 7.oV

uble .The plates, arranged as shown in the drawings, forni the principal walls ot' the vessel or vessels containing the liquid in contact with the said plates,and when several cells are arranged' in series forgliigh electro-motive 7'5 l lforce one side of a plate or element will form the positive' side of one cell, while -the other 'side of the same plate forms the negativeside of the adjoining cell. Thus great economy is etected, both in cost of construction of a. battery 8o aud,space occupied. The active coating may be formed or produced o n the surface of the plate b'y the oxidizing action of' antelectric cur' rent; or porous or spongy lead may be applied a through the agency of theelectricity or mechan- 8g;

ically; or oxide of lead or a compound cou;`r taining lead .may -be applied to the platefgand reduced to. poronslnetallic lead bya reducing atmosphere." 'Y

, Having fully described my invention, what-9o I claim as new, und desire to secure byLetters l Patent, isf.

41. The combination, in a secondary battery, of plates orelements provided with an active coating, with separating and insnlatin g strips, 9 5

and n battery-fluid in which the said active v coating is-insoluble, substantially as set forth. A2. Tnecombination of a series ot plates or elements made cellular, grooved, or ribbed, and furnished with an active coutingfwith strips1 roo arranged'and adapted to separate and insulate,y

the plates, and a battery-duid in which the said active' coating is insoluble, substantially as set forth'.

U l'lvaporation 55,A of iuclosed liquid is also preveutedtliereby,

lo elements of r'a secondary battery, conqtructed'- with their adjacent faces of f tagre?7 form;

" Witnesses:

and provided witlinuativemting,with strip'. arranged and adaptodgto apparato `and insulate the-plates orelementn, lnbstantiallyas'sot forth.

In testimony wheroof'l have signed my i 5 name to this npecicnton in tho' preunee'ef twosubseribing` witneges. A

CHARLES F. BRUSH. 'Y

J No. CROWELU, Jr., ALBERT E. Ln'cm 

